Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
65: | \[{29^{65}-1\over28}\] | 521 × 148123 × 732541 × 4748492087<10> × 118273570956941791<18> × 16132770616289764711<20> × 7929892237434016597965554961659881<34> |